Another almost finished & Bang in the Night

The pool heater timer system has been installed in between showers. 

The pump is located in the left box (yes… I have to paint it!) with the right box for the controllers.

If my chinglish is accurate I’ve correctly deciphered the instructions for both the solar controller and timer.

(yes… the wiring needs to be tidied)

I’ve wired the solar panel to the MPPT controller input.  The controller output goes to the battery, the Timer and the 12V relay.  The controller has load terminals which I have programmed to only be live when the controller is getting power from the solar panel.  The wire from the controller load terminal goes to the Trigger terminal on the Timer.  The result is the Timer function will only work when there is sun on the solar panel.

The terminals on the right side of the Timer are a switch which is activated by the Timer.  This switch activates the relay which is the switch for the water pump.

I’ve been able to establish the Timer has three options (programs)

P1 – A monostable trigger delay signal to trigger the switch.  When the time is up, the switch is disconnected 

P2 - A signal triggers and starts to count down. After a user set time in seconds, the switch turns on for a user set period in seconds and then turns off.

P3 – A signal trigger the switch on for a user defined period in seconds, then turns the switch off for a user defined period in seconds.  This is an , infinite loop provided there is a trigger signal.

I need to configure the P3 program.  My objective is to set the times in the P3 routine so the pump runs for 30 seconds every 15 minutes when there is sunlight on the solar panel.

Bang in the Night

On a more interesting topic, two nights ago we were lying in bed when Jan heard the backdoor handle.  Actually, even deaf old me heard a loud noise!  I asked Jan “Did you lock the backdoor darling?”  Jan was certain she had, which meant I should (needed to) investigate.  Reader I sleep in my birthday suit, so any intruder is either going to die of fright or choke on their tongue during hysterical laughter. 

The door was locked and I couldn’t see anyone outside.  However we subsequently decided it might be prudent to replace the single outdoor globe with a motion detector light.  That’s another job now completed.

My thoughts are there is a fine line between insufficient home security and too much.  Insufficient suggests a “soft target” whilst too much might suggest you have something very valuable worth taking. 

One thing we both noticed during this bang in the night was the damned dog slept through the noise and our subsequent nocturnal investigation.